weird idle issue

[tydon]

i didnt torque manifld just put it on really tight didnt get compression test either

cambelt untouched.

i put in the longblock out of my RSB which was running mint with no problems and changed the manifolds over

i should also add i have no foam in my podfilter either it was stuffed lol

[Rosssub]

 tydon said:

i didnt torque manifld just put it on really tight didnt get compression test either

cambelt untouched.

i put in the longblock out of my RSB which was running mint with no problems and changed the manifolds over

i should also add i have no foam in my podfilter either it was stuffed lol

A TB Vac Leak would show as a Constant Low Vac. Needle stuck a -15-16ish. You have Good Idle Vac. It\'s just wobbly.

The Intake Manifold needs to be Torqued correctly or the Gasket will Leak.

- Over Tightening causes Leaks.

- Uneven Tightening on Bolts causes Leaks.

- Under Tightening of Bolts causes Leaks.

- Incorrect Tightening Order can cause Leaks.

25nm or 18.1ft/lbs. Use a very thin/even smear of Adhesive Gasket Silicone, on both Gasket Faces if your worried.

Spray Ethanol/Engine Starter Fluid around the Gaskets, Idle will rise.

If not then time for a Compression Test.

[tydon]

lol i dont have a torque wrench and just bought new gaskets lol sigh

[Rosssub]

 tydon said:

lol i dont have a torque wrench and just bought new gaskets lol sigh

Bugger... :-\

Time to invest in some Gear.

Spray some Ethanol looking for Leaks first. If you find one, pull the Mani back off. Very gently so the Gaskets are Re-useable.

Then smear a light, even skim of "Adhesive Silicone" on both Gasket Faces.

Then Reinstall.

Don\'t over tighten it. 18.1ft/lbs isn\'t really that much.

Get them all as even as you can.

Or borrow a Wrench?

[tydon]

yeah gunna have to borrow a wrench will test for leaks before i tear manifold off

[Rosssub]

 tydon said:

yeah gunna have to borrow a wrench will test for leaks before i tear manifold off

If the Manifold does come off.

Test the Manifold Gasket Faces, with a Straight Edge. Make sure they\'re not Twisted or Buckled.

[ARGHAYE]

Check alternator charge rate. Should be between 14 and 14.7 Volts when running. Can cause all kinds of weird problems if over or under charging